In France, Trebbiano is mainly referred to as Ugni Blanc. However, in the Cognac region (where it is 1 of 3 grapes used to produce Cognac & Armagnac) Ugni Blanc is referred to as “Saint Emilion”- like the subregion of Bordeaux. This is extremely confusing, as St. Emilion wines are typically a red blend of Cabernet Sauvignon, Cabernet Franc, and Merlot (ratios vary).
Trebbiano (Italy) = Ugni Blanc (France) = “Saint Emilion” (Cognac)
“Saint Emilion” (white grape, Cognac) >=< St. Emilion (red grape blend, Bordeaux)